Controller-valve.



J. M. HORRIDGE.

CONTROLLER VALVE APPLIOATION FILED FEB. 20, 190B.

93,86@. Patented Au 10,1909.

3140c 1 1 Po:

JOHN M. HoRRIpGE, 0F Los' ANGELES, "'(ALIFORNIA.

' I commune-vans.

Specification of Letters Batent.

I Patented'Aug. 10, 1909.

Application filed February 2011903. serial No. 416,949.

To all'whom 'it may concern: 1 f Be it known that 1, JOHN M. HORRIDGE, a

citizen of the United States, residing atLos Angeles, in the county ofLos Angelesfand State of California, have invented certain new anduseful Im rovements in Controller- Valves; and I do eclare the followingto be a full, clear, and exact description'ofthe invention, such as will.enable'others skilled in the art to which it appertains to make and usethesame.

This invention relates to valves for regulating or controlling the flowof steam under pressure.

The object of the" invention is to provide a pum with a valve of thischaracter which is sinip e in construction and accurate in operation. a

In the accompanying drawings, Figure I is a longitudinal sectional viewshowing a valve constructed in accordance with this invention, Fig. 2 isa transverse section taken on the line,2-2' of Fig.1, Fig. 3 is asectional view taken on the line 33 of Fig. 1, showing the valve closed.

. In the embodiment illustrated a globe or valve casing 1 is shownthrough which the steam passes, and which is provided with an outsidenut 2 on its bonnet 2 A bushing 3 fits inside said valve casing .1, andis keyed at 4 to prevent turning thereof. The bushing 3 is provided withsteam ports 5 and a slot 6 to receive a dowel pin 7. A reciproeatingvalve 8 is arranged within said bush- ,ing 3 and is rovided with aplurality-0f holes 9, preferab y four to balance it and with steam orts8 which register with the ports 5 of t e bushing when the valve is open.A s ace 8 is provided between said valve 8 an the bonnet '2 to ermit thesteam to pass in and form a ba ance for the valve. A stem 10 is screwedinto the center of said valve 8 and is preferably provided with a dowelpin, to prevent its turning in the valve and thereb hold the arts inposition. The bonnet 2 as a stu mg box 12, a gland 1'3 and a nut 14 toprovide for the packing thereof, to keep it tight around the stem 10.Thisstem 10 carries the valve 8 at one end and the piston 15, a leathergasket 16, retaining washer 17 and nut 18 at its other end.

A bracket 19. secures the bonnet 2' to a inder.

cylinder 20. A hollow adjusting screw 21 surrounds and is slidable onthe stem 10, and screws into the bracket 19 and c linder 20 and bearsagainst a retainer 22, w ich holds the spring 23 in place in thecylinder 20.

The spring 23 is coiled on the stem 10 and bears at its other endagainst the piston 15 and regulates the pressure thereon and tends tohold the valve 8 in open position.

cylinder 20, and is provided with an internally screw threaded tap holeto receive the pipe 25 which admits the water into the cyl- The cylinderis provided with a oneeighth inch tap hole 20 in its bottomto provide adrain for the cylinder in case the gasket 16 should leak.

. A brass nipple 26 is arranged in the pipe 25 and has a one-fourth inchore 27 extending about two-thirds of its length which is reduced at theinner end of the nipple to a one-sixteenth inch bore 28. This nipple isusedon the governor so that when the pressure on the pump (not shown) isreduced the water will pass through said nipple slowly and prevent toorapid opening of the governor valve and consequent pounding of the pump.

In the use of this valve when the pressure in the pump becomes excessivethe water is forced through the pipe 25 into the cylinder 20 and forcesthe piston 15'on the-stem 10 back against the tension of the spring 23carrying with it the valve 8 thereby gradually reducing the size of theopenings 8? of said valve and shutting off the passage of the steamtherethrough. As the pressure in the pum is reduced the water will flowback slowy through the pipe 25 and nipple 26 permitting the piston 15 tobe moved forward "under the action of the spring 23 and the valve 8again slowly opened.

Having thus particularly. described and ascertained the nature ofmyinvention and in what manner the same is to be performed, what I claimas my invention is:

In a pressure governor, the combination of a steam pipe, a casingtherein, a sleeve in said casing provided with opposite peripheralports, a piston-valve in said sleeve provide with opposite ports whichcontrol the ports in the sleeve, a guide-way in said I A cap 24 isscrewed in the outer end of the Q e L 980,860

sleeve ooeperating with a pin on said valve,- In testimony whereof Ihave hereunto set a reciprocating stem secured to said valve my hand inpresence of two subscribing wit ll and to fill. s ring-held pistoza,means for supnesses;

in uk ressure to sai piston in 0 o- 5 i on to suifi s ring, means forregulegmg JOHN HORRIDGE' the tension of t 1e sgring, and means for re-Witness 5: terding the flow of uid pressure to the pis- R. A.-MORSE,ton, substantially as specified. MARIE PRESTON.

